what do you do with a cigarette Smoking Effects on the Brain: Need to Know Do You Inhale? Wonder why

A 20mg/mL vape, on the other hand, might provide about 1mg of nicotine

Exposure to cigarette smoke (Kim et al., 2014), its major constituent nicotine (Petsophonsakul et al., 2021), and electronic cigarettes ( in vitro cellular studies have shown that constituents of cigarette smoke lead to depletion of the cofactor tetrahydrobiopterin in vascular endothelial cells, which is essential for endothelial NO synthase function, resulting in uncoupling and dysfunction of endothelial NO synthase and endothelial dysfunction ( in vivo studies in smokers and in vitro studies in bovine aortic endothelial cells (Peluffo et al., 2009)

And where can there be tar and nicotine if the whole blend is made of rubbish

However, this does not mean that those with a darker skin cannot suffer from sunburned lips